Answer:
formal region is an area inhabited by people who have one or more characteristics in common. ... Examples of formal regions are Europe, Africa, United States, and Canada. Functional Region. A functional region is an area organized to function politically, socially, and economically as a single unit.
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The Lapita traveled to the bismarck islands, papua new guinea.
"The Lapita people are best known for their complex and intricate designed pottery."
The astronomical event that represents the great serpent mound is Halley's Comet.